Cosmoscope DB

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All extensions

  • syntax-highlight — rendered with syntax highlighting (1435)
  • special-renderer — a dedicated preview card (456)
  • native-sufficient — macOS Quick Look already handles it (115)
  • not-a-file — not a standalone file: URI schemes, container atoms, system artifacts (46); documented for reference, nothing to preview
  • gap — not yet supported; the honest backlog (3031)

long-tail (500)

  • .r09 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r10 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r11 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r12 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r13 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r14 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r15 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r16 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r17 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r18 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r19 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r20 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r21 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r22 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r23 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r24 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r25 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r26 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r27 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r28 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r29 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r2d — r2d data format Not yet supportedrare
  • .r30 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r31 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r32 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r33 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r34 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r35 — Multi-volume RAR archive part, join with sibling volumes Not yet supportedrare
  • .r36 — r36 data format Not yet supportedrare
  • .r37 — r37 data format Not yet supportedrare
  • .r38 — r38 data format Not yet supportedrare
  • .r39 — r39 data format Not yet supportedrare
  • .r40 — r40 data format Not yet supportedrare
  • .r41 — r41 data format Not yet supportedrare
  • .r42 — r42 data format Not yet supportedrare
  • .r43 — r43 data format Not yet supportedrare
  • .r44 — r44 data format Not yet supportedrare
  • .r45 — r45 data format Not yet supportedrare
  • .r46 — r46 data format Not yet supportedrare
  • .r47 — r47 data format Not yet supportedrare
  • .r48 — r48 data format Not yet supportedrare
  • .r49 — r49 data format Not yet supportedrare
  • .r50 — r50 data format Not yet supportedrare
  • .r51 — r51 data format Not yet supportedrare
  • .r52 — r52 data format Not yet supportedrare
  • .r53 — r53 data format Not yet supportedrare
  • .r54 — r54 data format Not yet supportedrare
  • .r55 — r55 data format Not yet supportedrare
  • .r56 — r56 data format Not yet supportedrare
  • .r57 — r57 data format Not yet supportedrare
  • .r58 — r58 data format Not yet supportedrare
  • .r59 — r59 data format Not yet supportedrare
  • .r60 — r60 data format Not yet supportedrare
  • .r61 — r61 data format Not yet supportedrare
  • .r62 — r62 data format Not yet supportedrare
  • .r63 — r63 data format Not yet supportedrare
  • .r64 — r64 data format Not yet supportedrare
  • .r65 — r65 data format Not yet supportedrare
  • .r66 — r66 data format Not yet supportedrare
  • .r67 — r67 data format Not yet supportedrare
  • .r68 — r68 data format Not yet supportedrare
  • .r69 — r69 data format Not yet supportedrare
  • .r70 — r70 data format Not yet supportedrare
  • .r71 — r71 data format Not yet supportedrare
  • .r72 — r72 data format Not yet supportedrare
  • .r73 — r73 data format Not yet supportedrare
  • .r74 — r74 data format Not yet supportedrare
  • .r75 — r75 data format Not yet supportedrare
  • .r76 — r76 data format Not yet supportedrare
  • .r77 — r77 data format Not yet supportedrare
  • .r78 — r78 data format Not yet supportedrare
  • .r79 — r79 data format Not yet supportedrare
  • .r80 — r80 data format Not yet supportedrare
  • .r81 — r81 data format Not yet supportedrare
  • .r82 — r82 data format Not yet supportedrare
  • .r83 — r83 data format Not yet supportedrare
  • .r84 — r84 data format Not yet supportedrare
  • .r85 — r85 data format Not yet supportedrare
  • .r86 — r86 data format Not yet supportedrare
  • .r87 — r87 data format Not yet supportedrare
  • .r88 — r88 data format Not yet supportedrare
  • .r89 — r89 data format Not yet supportedrare
  • .r8p — r8p data format Not yet supportedrare
  • .r90 — r90 data format Not yet supportedrare
  • .r91 — r91 data format Not yet supportedrare
  • .r92 — r92 data format Not yet supportedrare
  • .r93 — r93 data format Not yet supportedrare
  • .r94 — r94 data format Not yet supportedrare
  • .r95 — r95 data format Not yet supportedrare
  • .r96 — r96 data format Not yet supportedrare
  • .r97 — r97 data format Not yet supportedrare
  • .r98 — r98 data format Not yet supportedrare
  • .r99 — r99 data format Not yet supportedrare
  • .rad — Radiance lighting simulation scene description, parsed by Radiance tools Not yet supportedrare
  • .ral — ral data format Not yet supportedrare
  • .rap — rap data format Not yet supportedrare
  • .raster — raster data format Not yet supportedrare
  • .raw-disk-image — Raw disk image Not yet supportedrare
  • .raw-disk-image.xz — Raw disk image Not yet supportedrare
  • .rbxl — Roblox place file, binary map opened by Roblox Studio Not yet supportedrare
  • .rc — Windows resource script or Unix run-commands configuration, plain text Not yet supportedrare
  • .rcprofile — rcprofile data format Not yet supportedrare
  • .rdfs — RDF file Not yet supportedrare
  • .rdi — rdi data format Not yet supportedrare
  • .rdp — Remote Desktop connection settings, plain text, opened by mstsc Not yet supportedrare
  • .rdz — rdz data format Not yet supportedrare
  • .rec — rec data format Not yet supportedrare
  • .referenceobject — referenceobject data format Not yet supportedrare
  • .rel — rel data format Not yet supportedrare
  • .rep — rep data format Not yet supportedrare
  • .rgn — rgn data format Not yet supportedrare
  • .rgss2a — RPG Maker VX RGSS2 game data archive, read by the RPG Maker runtime Not yet supportedrare
  • .rgss3a — RPG Maker VX Ace RGSS3 game data archive, read by the RPG Maker runtime Not yet supportedrare
  • .rgssad — RPG Maker XP RGSS game data archive, read by the RPG Maker runtime Not yet supportedrare
  • .rif — rif data format Not yet supportedrare
  • .rip — rip data format Not yet supportedrare
  • .ris — RIS bibliographic citation record, plain text, imported by reference managers Not yet supportedrare
  • .rlc — rlc data format Not yet supportedrare
  • .rld — rld data format Not yet supportedrare
  • .RMAIL — GNU mail message Not yet supportedrare
  • .rmeta — Rust crate metadata file emitted by rustc during compilation Not yet supportedrare
  • .rmp — rmp data format Not yet supportedrare
  • .rnc — RELAX NG XML schema Not yet supportedrare
  • .roa — roa data format Not yet supportedrare
  • .rob — rob data format Not yet supportedrare
  • .rol — rol data format Not yet supportedrare
  • .rom — Memory dump image, typically a game console or firmware ROM Not yet supportedrare
  • .rp9 — Cloanto Amiga Forever retro package, opened by Amiga Forever Not yet supportedrare
  • .rpgmvm — RPG Maker MV encrypted music asset, decrypted by the game runtime Not yet supportedrare
  • .rpgmvp — RPG Maker MV encrypted picture asset, decrypted by the game runtime Not yet supportedrare
  • .rpss — rpss data format Not yet supportedrare
  • .rpst — rpst data format Not yet supportedrare
  • .rra — rra data format Not yet supportedrare
  • .rsa — PEM-encoded RSA private or public key, plain text Not yet supportedrare
  • .rsd — rsd data format Not yet supportedrare
  • .rsm — rsm data format Not yet supportedrare
  • .rsr — rsr data format Not yet supportedrare
  • .rsrc — Classic Mac OS resource fork data, edited with ResEdit-style tools Not yet supportedrare
  • .rua — rua data format Not yet supportedrare
  • .rvz — Ryujinx Compressed ROM Not yet supportedcommon
  • .rws — rws data format Not yet supportedrare
  • .rzx — ZX Spectrum RZX replay snapshot Not yet supportedrare
  • .s7i — Seed7 programming language include library, plain text Not yet supportedrare
  • .saf — saf data format Not yet supportedrare
  • .safari-extension — Safari Extension URI Not yet supportedcommon
  • .safariextz — Safari browser extension package, signed archive installed by Safari Not yet supportedrare
  • .saif — saif data format Not yet supportedrare
  • .sami — SAMI subtitles Not yet supportedrare
  • .sap — SAP Thomson floppy disk image Not yet supportedrare
  • .sar — sar data format Not yet supportedrare
  • .sb — Scratch 1.4 project file, opened by the Scratch editor Not yet supportedrare
  • .sb2 — Scratch 2 project file, opened by the Scratch editor Not yet supportedrare
  • .sb3 — Scratch 3 project archive, opened by the Scratch editor Not yet supportedrare
  • .sbh — sbh data format Not yet supportedrare
  • .sbv — SBV subtitle captions, plain text, used for YouTube video captions Not yet supportedrare
  • .sc4 — SimCity 4 saved city or region data, opened by SimCity 4 Not yet supportedrare
  • .sc8 — CHIP-8 program Not yet supportedrare
  • .scap — PCAPNG packet capture Not yet supportedrare
  • .scf — Windows Explorer shell command file, plain text, e.g. Show Desktop Not yet supportedrare
  • .scn — Godot Engine scene Not yet supportedrare
  • .scnassets — SceneKit asset bundle holding models and textures for Apple apps Not yet supportedrare
  • .scncache — SceneKit compiled scene cache generated by Xcode Not yet supportedrare
  • .scnp — SceneKit scene archive used by Apple apps for 3D content Not yet supportedrare
  • .scnz — Compressed SceneKit scene archive used by Apple apps Not yet supportedrare
  • .scoreboard — scoreboard data format Not yet supportedrare
  • .scq — scq data format Not yet supportedrare
  • .scr — Windows or DOS program Not yet supportedrare
  • .script — script data format Not yet supportedrare
  • .scriptSuite — AppleScript script suite definition describing Cocoa scripting classes Not yet supportedrare
  • .scriptTerminology — AppleScript terminology definition mapping scripting commands and names Not yet supportedrare
  • .scs — Euro Truck Simulator 2 mod package, loaded by the ETS2 game Not yet supportedrare
  • .scurl — scurl data format Not yet supportedrare
  • .sd7 — sd7 data format Not yet supportedrare
  • .sdb — sdb data format Not yet supportedrare
  • .sdef — AppleScript scripting definition, XML, documents an app's commands Not yet supportedrare
  • .sdg — sdg data format Not yet supportedrare
  • .sdi — sdi data format Not yet supportedrare
  • .sdir — sdir data format Not yet supportedrare
  • .sdkd — sdkd data format Not yet supportedrare
  • .sdkm — sdkm data format Not yet supportedrare
  • .sdnn — sdnn data format Not yet supportedrare
  • .sdt — sdt data format Not yet supportedrare
  • .sdts — SDTS spatial data transfer file, US federal GIS exchange format Not yet supportedrare
  • .sdv — sdv data format Not yet supportedrare
  • .sea — Self-extracting archive, runs to unpack its bundled contents Not yet supportedrare
  • .sec — sec data format Not yet supportedrare
  • .see — see data format Not yet supportedrare
  • .seed — seed data format Not yet supportedrare
  • .sema — sema data format Not yet supportedrare
  • .semd — semd data format Not yet supportedrare
  • .semf — semf data format Not yet supportedrare
  • .seq — seq data format Not yet supportedrare
  • .ser — Java serialized object stream, read with ObjectInputStream Not yet supportedrare
  • .series — series data format Not yet supportedrare
  • .setpay — setpay data format Not yet supportedrare
  • .setreg — setreg data format Not yet supportedrare
  • .sf — sf data format Not yet supportedrare
  • .sfb — sfb data format Not yet supportedrare
  • .sfd-hdstx — sfd-hdstx data format Not yet supportedrare
  • .sfh — sfh data format Not yet supportedrare
  • .sfnt — SFNT outline font container holding TrueType or OpenType glyphs Not yet supportedrare
  • .sfont — sfont data format Not yet supportedrare
  • .sfs — Squashfs filesystem image Not yet supportedrare
  • .sfx — sfx data format Not yet supportedrare
  • .sg — SG-1000 ROM Not yet supportedrare
  • .sgb — Game Boy ROM Not yet supportedrare
  • .sgd — Genesis ROM Not yet supportedrare
  • .sgf — SGF record Not yet supportedrare
  • .shape — Dia shape Not yet supportedrare
  • .shar — Shell archive Not yet supportedrare
  • .shb — shb data format Not yet supportedrare
  • .shf — shf data format Not yet supportedrare
  • .shr — shr data format Not yet supportedrare
  • .shtm — Server-side-included HTML page, parsed by web servers Not yet supportedrare
  • .shtml — Server-side-included HTML page, parsed by web servers Not yet supportedrare
  • .shw — shw data format Not yet supportedrare
  • .siag — Siag spreadsheet Not yet supportedrare
  • .sic — sic data format Not yet supportedrare
  • .sik — Backup file Not yet supportedrare
  • .sil — sil data format Not yet supportedrare
  • .silo — silo data format Not yet supportedrare
  • .sis — SIS package Not yet supportedrare
  • .sisx — SISX package Not yet supportedrare
  • .skd — skd data format Not yet supportedrare
  • .sketchcloud — sketchcloud data format Not yet supportedrare
  • .sketchdefault — sketchdefault data format Not yet supportedrare
  • .sketchplugin — Sketch design app plugin, JavaScript extension bundle Not yet supportedrare
  • .sketchpreset — Sketch design app preset data, loaded by the Sketch inspector Not yet supportedrare
  • .skill — Cadence SKILL script source for electronic design automation tools Not yet supportedrare
  • .skm — skm data format Not yet supportedrare
  • .skr — PGP keys Not yet supportedrare
  • .sks — sks data format Not yet supportedrare
  • .skt — skt data format Not yet supportedrare
  • .slddrw — SolidWorks 2D drawing document, opened by SolidWorks Not yet supportedrare
  • .slm — slm data format Not yet supportedrare
  • .slt — ZX Spectrum SLT multiload snapshot Not yet supportedrare
  • .sm — sm data format Not yet supportedrare
  • .smclvl — smclvl data format Not yet supportedrare
  • .sms — Master System ROM Not yet supportedrare
  • .smv — smv data format Not yet supportedrare
  • .smzip — StepMania package, a zip archive of songs or themes Not yet supportedrare
  • .sna — ZX Spectrum SNA snapshot Not yet supportedrare
  • .snappy — Snappy-compressed data, fast compression read by the snappy library Not yet supportedrare
  • .snf — snf data format Not yet supportedrare
  • .sno — sno data format Not yet supportedrare
  • .snp — Microsoft Access report snapshot, opened in Snapshot Viewer Not yet supportedrare
  • .snz — snz data format Not yet supportedrare
  • .sos — sos data format Not yet supportedrare
  • .spf — Sender Policy Framework DNS record, plain text, published in zone files Not yet supportedrare
  • .spiff — SPIFF still-image file, the JPEG standard's interchange format Not yet supportedrare
  • .spk — spk data format Not yet supportedrare
  • .spm — Source RPM package Not yet supportedrare
  • .spoon — spoon data format Not yet supportedrare
  • .spot — spot data format Not yet supportedrare
  • .spp — spp data format Not yet supportedrare
  • .spq — spq data format Not yet supportedrare
  • .spv — IBM SPSS statistics output document, opened by SPSS Not yet supportedrare
  • .spz — spz data format Not yet supportedrare
  • .sqfs — Squashfs filesystem image Not yet supportedrare
  • .sqlar — SQLite archive storing files inside an SQLite database, read by sqlite3 Not yet supportedrare
  • .sqlite-wal — SQLite write-ahead log accompanying a SQLite database file Not yet supportedrare
  • .sqsh — Squashfs filesystem image Not yet supportedrare
  • .squashfs — Squashfs filesystem image Not yet supportedrare
  • .src — WAIS source code Not yet supportedrare
  • .src.rpm — Source RPM package Not yet supportedrare
  • .srm — SNES Save RAM Not yet supportedcommon
  • .srs — srs data format Not yet supportedrare
  • .srx — SPARQL query results Not yet supportedrare
  • .ssc — ssc data format Not yet supportedrare
  • .ssdl — Entity Framework store schema definition, XML for database mapping Not yet supportedrare
  • .sse — sse data format Not yet supportedrare
  • .ssf — ssf data format Not yet supportedrare
  • .ssml — Speech Synthesis Markup Language, XML controlling text-to-speech output Not yet supportedrare
  • .stc — OpenOffice.org 1.0 Calc template Not yet supportedrare
  • .stex — Godot engine stored texture resource, imported image data Not yet supportedrare
  • .stf — stf data format Not yet supportedrare
  • .stickerpack — stickerpack data format Not yet supportedrare
  • .stickiesappexport — macOS Stickies notes export, opened by the Stickies app Not yet supportedrare
  • .sto — sto data format Not yet supportedrare
  • .stone — stone data format Not yet supportedrare
  • .storekit — Xcode StoreKit configuration, JSON for testing in-app purchases Not yet supportedrare
  • .storyboardc — Compiled Interface Builder storyboard, built by Xcode for apps Not yet supportedrare
  • .str — str data format Not yet supportedrare
  • .strk — strk data format Not yet supportedrare
  • .stx — stx data format Not yet supportedrare
  • .sur — sur data format Not yet supportedrare
  • .sus — sus data format Not yet supportedrare
  • .susp — susp data format Not yet supportedrare
  • .sv4cpio — SV4 CPIO archive Not yet supportedrare
  • .sv4crc — SV4 CPIO archive Not yet supportedrare
  • .svc — Windows Communication Foundation service source, hosted by IIS Not yet supportedrare
  • .swa — swa data format Not yet supportedrare
  • .swi — swi data format Not yet supportedrare
  • .swiftpm — Swift package in the Swift Playgrounds package format Not yet supportedrare
  • .sxc — OpenOffice.org 1.0 Calc spreadsheet Not yet supportedrare
  • .sxm — OpenOffice.org 1.0 Math formula Not yet supportedrare
  • .sxp — sxp data format Not yet supportedrare
  • .sylk — Spreadsheet interchange document Not yet supportedrare
  • .symboliclink — Symbolic link file referencing another path on the filesystem Not yet supportedrare
  • .sysex — MIDI system-exclusive data dump, sent to synthesizers Not yet supportedrare
  • .syx — MIDI system-exclusive binary dump, loaded into synthesizers Not yet supportedrare
  • .sz — sz data format Not yet supportedrare
  • .szx — ZX Spectrum SZX snapshot Not yet supportedrare
  • .t3 — TADS 3 interactive fiction game file, played by a TADS interpreter Not yet supportedrare
  • .t64 — Commodore tape image Not yet supportedrare
  • .t65 — t65 data format Not yet supportedrare
  • .tab.sf3 — SF3 Table Not yet supportedrare
  • .tableplusconnection — TablePlus database connection configuration file Not yet supportedrare
  • .tableplusplugin — TablePlus database client plugin package Not yet supportedrare
  • .taglet — taglet data format Not yet supportedrare
  • .tao — tao data format Not yet supportedrare
  • .tar-z — tar archive compressed with the classic Unix compress utility Not yet supportedrare
  • .tar.lzo — Tar archive Not yet supportedrare
  • .taskpaper — TaskPaper plain-text to-do list, opened by the TaskPaper app Not yet supportedrare
  • .tbd — Apple text-based stub dylib used for linking without the binary Not yet supportedrare
  • .tc — TrueCrypt encrypted volume container, opened by TrueCrypt or VeraCrypt Not yet supportedrare
  • .tcap — tcap data format Not yet supportedrare
  • .teacher — teacher data format Not yet supportedrare
  • .tei — TEI XML text document encoded by the Text Encoding Initiative scheme Not yet supportedrare
  • .teicorpus — TEI XML corpus bundling multiple encoded text documents Not yet supportedrare
  • .template — template data format Not yet supportedrare
  • .ter — ter data format Not yet supportedrare
  • .textbundle — TextBundle portable rich-text document bundle with attachments Not yet supportedrare
  • .textClipping — macOS text clipping holding text dragged out of an app Not yet supportedrare
  • .tfc — tfc data format Not yet supportedrare
  • .tfi — tfi data format Not yet supportedrare
  • .tfil — tfil data format Not yet supportedrare
  • .tfm — TeX font metrics file describing glyph dimensions for typesetting Not yet supportedrare
  • .tgt — tgt data format Not yet supportedrare
  • .theater — theater data format Not yet supportedrare
  • .themepack — Microsoft Windows theme pack Not yet supportedrare
  • .thm — theme or thumbnail data Not yet supportedrare
  • .thumbs.db — Microsoft Windows Thumbnail Cache Not yet supportedrare
  • .tib — Acronis True Image disk backup archive, restored by Acronis software Not yet supportedrare
  • .tic — TIC-80 cartridge Not yet supportedrare
  • .tightbeam — tightbeam data format Not yet supportedrare
  • .tja — Taiko no Tatsujin drum-song chart, plain text with note timings Not yet supportedrare
  • .tlb — OLE COM type library, binary interface description for automation Not yet supportedrare
  • .tlz4 — Tar archive compressed with LZ4, unpacked with tar -I lz4 Not yet supportedrare
  • .tmo — tmo data format Not yet supportedrare
  • .tmp — Temporary file created by an application, usually safe to delete Not yet supportedrare
  • .tmx — Tiled map files Not yet supportedrare
  • .tnef — TNEF message Not yet supportedrare
  • .tnf — TNEF message Not yet supportedrare
  • .tpt — tpt data format Not yet supportedrare
  • .tql — tql data format Not yet supportedrare
  • .tr1 — tr1 data format Not yet supportedrare
  • .tra — tra data format Not yet supportedrare
  • .tracker — GNOME Tracker API Not yet supportedcommon
  • .trc0 — trc0 data format Not yet supportedrare
  • .trc1 — trc1 data format Not yet supportedrare
  • .trd — trd data format Not yet supportedrare
  • .tre — tre data format Not yet supportedrare
  • .trf — trf data format Not yet supportedrare
  • .trm — trm data format Not yet supportedrare
  • .tsc — tsc data format Not yet supportedrare
  • .tsd — tsd data format Not yet supportedrare
  • .tsnz — tsnz data format Not yet supportedrare
  • .tsz — tsz data format Not yet supportedrare
  • .tte — tte data format Not yet supportedrare
  • .tut — tut data format Not yet supportedrare
  • .tutorial — tutorial data format Not yet supportedrare
  • .tvdb — Apple TV app library database package storing media collections Not yet supportedrare
  • .tvlibrary — Apple TV app Videos library package on macOS Not yet supportedrare
  • .tvthumb.db — Microsoft Windows Thumbnail Cache Not yet supportedrare
  • .twd — twd data format Not yet supportedrare
  • .twds — twds data format Not yet supportedrare
  • .txd — RenderWare texture dictionary holding game textures, used by GTA titles Not yet supportedrare
  • .txf — Tax Exchange Format file, financial data imported by tax software Not yet supportedrare
  • .txt.sf3 — SF3 Rich Text Not yet supportedrare
  • .tz2 — tar archive compressed with bzip2, unpacked with tar and bunzip2 Not yet supportedrare
  • .tzo — Tar archive Not yet supportedrare
  • .tzx — ZX Spectrum TZX tape image Not yet supportedrare
  • .u32 — u32 data format Not yet supportedrare
  • .udeb — Debian package Not yet supportedrare
  • .uf2 — UF2 firmware image for microcontroller bootloaders, USB flashing format Not yet supportedrare
  • .ufd — ufd data format Not yet supportedrare
  • .ufdl — ufdl data format Not yet supportedrare
  • .ufraw — UFRaw ID image Not yet supportedrare
  • .ulx — Glulx interactive fiction story file, run by Inform interpreters Not yet supportedrare
  • .umj — umj data format Not yet supportedrare
  • .ump — Umple modeling language source, UML models mixed with embedded code Not yet supportedrare
  • .unf — NES ROM Not yet supportedrare
  • .unif — NES ROM Not yet supportedrare
  • .unityweb — Unity engine build data, often gzip-compressed for web delivery Not yet supportedrare
  • .unv — I-DEAS universal file with test or finite element model data Not yet supportedrare
  • .unx — unx data format Not yet supportedrare
  • .uoml — uoml data format Not yet supportedrare
  • .uos — Unified Office Format spreadsheet document, Chinese UOF standard Not yet supportedrare
  • .uot — Unified Office Format text document, Chinese UOF standard Not yet supportedrare
  • .upd — upd data format Not yet supportedrare
  • .upk — Unreal Engine 3 package holding game content and assets Not yet supportedrare
  • .ups — UPS binary patch file applied to a ROM image to modify it Not yet supportedrare
  • .uri — URI shortcut file pointing to a web resource, plain text Not yet supportedrare
  • .uris — URI list file with one web resource reference per line Not yet supportedrare
  • .urls — URL list file, plain text web addresses, one per line Not yet supportedrare
  • .usd — Pixar Universal Scene Description file holding 3D scene data Not yet supportedrare
  • .ustx — Synthesizer V project file for voice-synthesis songs Not yet supportedrare
  • .ut! — ut! data format Not yet supportedrare
  • .utz — utz data format Not yet supportedrare
  • .uu — uuencoded binary data rendered as plain text, decoded with uudecode Not yet supportedrare
  • .uva — uva data format Not yet supportedrare
  • .uvd — uvd data format Not yet supportedrare
  • .uvf — uvf data format Not yet supportedrare
  • .uvg — uvg data format Not yet supportedrare
  • .uvh — uvh data format Not yet supportedrare
  • .uvi — uvi data format Not yet supportedrare
  • .uvm — uvm data format Not yet supportedrare
  • .uvp — uvp data format Not yet supportedrare
  • .uvs — uvs data format Not yet supportedrare
  • .uvt — uvt data format Not yet supportedrare
  • .uvu — uvu data format Not yet supportedrare
  • .uvv — uvv data format Not yet supportedrare
  • .uvva — uvva data format Not yet supportedrare
  • .uvvd — uvvd data format Not yet supportedrare
  • .uvvf — uvvf data format Not yet supportedrare
  • .uvvg — uvvg data format Not yet supportedrare
  • .uvvh — uvvh data format Not yet supportedrare
  • .uvvi — uvvi data format Not yet supportedrare
  • .uvvm — uvvm data format Not yet supportedrare
  • .uvvp — uvvp data format Not yet supportedrare
  • .uvvs — uvvs data format Not yet supportedrare
  • .uvvt — uvvt data format Not yet supportedrare
  • .uvvu — uvvu data format Not yet supportedrare
  • .uvvv — uvvv data format Not yet supportedrare
  • .uvvx — uvvx data format Not yet supportedrare
  • .uvvz — uvvz data format Not yet supportedrare
  • .uvx — uvx data format Not yet supportedrare
  • .uvz — uvz data format Not yet supportedrare
  • .uwl — uwl data format Not yet supportedrare
  • .uxf — UML eXchange Format document, XML, exchanged between UML tools Not yet supportedrare
  • .v3 — v3 data format Not yet supportedrare
  • .v4p — v4p data format Not yet supportedrare
  • .vbm — vbm data format Not yet supportedrare
  • .vbox-extpack — VirtualBox extension pack adding extra features to VirtualBox Not yet supportedrare
  • .vbr — vbr data format Not yet supportedrare
  • .vbx — Visual Basic custom control used by 16-bit VB applications Not yet supportedrare
  • .vc — vc data format Not yet supportedrare
  • .vc6 — vc6 data format Not yet supportedrare
  • .vcal — vCalendar calendar event data, predecessor of the iCalendar format Not yet supportedrare
  • .vcg — vcg data format Not yet supportedrare
  • .vcls — vcls data format Not yet supportedrare
  • .vcx — Visual FoxPro class library defining reusable form classes Not yet supportedrare
  • .vdr — vdr data format Not yet supportedrare
  • .vdw — Microsoft Visio web drawing for viewing diagrams in a browser Not yet supportedrare
  • .vdx — Microsoft Visio drawing saved in XML format Not yet supportedrare
  • .vertex — vertex data format Not yet supportedrare
  • .vfd — vfd data format Not yet supportedrare
  • .vi — LabVIEW Virtual Instrument file, graphical code module Not yet supportedrare
  • .video.db — Microsoft Windows Thumbnail Cache Not yet supportedrare
  • .videoslibrary — Apple Videos app library package on macOS Not yet supportedrare
  • .viewhierarchy — Android Studio captured view hierarchy for layout inspection Not yet supportedrare
  • .vis — vis data format Not yet supportedrare
  • .vlm — vlm data format Not yet supportedrare
  • .vmcz — vmcz data format Not yet supportedrare
  • .vmg — Nokia phone SMS message file in the vMessage format Not yet supportedrare
  • .vmlinux.efi — Linux kernel with EFI stub Not yet supportedrare
  • .vmlinuz.efi — Linux kernel with EFI stub Not yet supportedrare
  • .vox — Dialogic ADPCM audio file, compressed speech-oriented sound Not yet supportedrare
  • .vpc — VHD disk image Not yet supportedrare
  • .vpk — Valve Pak archive holding Source engine game assets Not yet supportedrare
  • .vpm — vpm data format Not yet supportedrare
  • .vpp — vpp data format Not yet supportedrare
  • .vqm — vqm data format Not yet supportedrare
  • .vrb — vrb data format Not yet supportedrare
  • .vrs — vrs data format Not yet supportedrare
  • .vsf — vsf data format Not yet supportedrare
  • .vsm — vsm data format Not yet supportedrare
  • .vss — Microsoft Visio document Not yet supportedrare
  • .vst — Microsoft Visio document Not yet supportedrare
  • .vsto — Visual Studio Tools for Office add-in deployment manifest Not yet supportedrare
  • .vsvnbak — Subversion repository backup data Not yet supportedrare
  • .vsw — Microsoft Visio document Not yet supportedrare
  • .vtu — VTK unstructured-grid dataset in XML form, read by ParaView Not yet supportedrare
  • .vvvvvv — VVVVVV game level or save file for the platformer VVVVVVV Not yet supportedrare
  • .vxd — 32-bit DOS executable Not yet supportedrare
  • .w3d — Shockwave 3D scene exported from Adobe Director Not yet supportedrare
  • .w40 — w40 data format Not yet supportedrare
  • .wab — Windows Address Book storing contact entries Not yet supportedrare
  • .wacz — Web Archive Collection Zipped, packaged web archive with WARC data Not yet supportedrare
  • .wad — Wii Channel Not yet supportedcommon
  • .warc — Web ARChive file capturing harvested web pages and resources Not yet supportedrare
  • .wb1 — Quattro Pro spreadsheet Not yet supportedrare
  • .wb2 — Quattro Pro spreadsheet Not yet supportedrare
  • .wb3 — Quattro Pro spreadsheet Not yet supportedrare
  • .wbfs — Wii Backup File System Not yet supportedcommon
  • .wbm — wbm data format Not yet supportedrare
  • .wbs — wbs data format Not yet supportedrare
  • .wbt — wbt data format Not yet supportedrare
  • .wbxml — WAP Binary XML, compact binary encoding of XML for mobile devices Not yet supportedrare
  • .wc — wc data format Not yet supportedrare
  • .wcm — Microsoft Works document Not yet supportedrare
  • .wdb — Microsoft Works document Not yet supportedrare
  • .webhistory — web browser history data Not yet supportedrare
  • .wer — Windows Error Reporting report file describing an app crash Not yet supportedrare
  • .wfa — wfa data format Not yet supportedrare
  • .wflow — Apple Shortcuts shortcut file defining an automation workflow Not yet supportedrare
  • .wg — wg data format Not yet supportedrare
  • .wgt — W3C widget package, zipped web application with a config file Not yet supportedrare
  • .wheel — Python wheel package, built distribution archive for pip Not yet supportedrare